Diagnostic Fault Information
WARNING: This page is about a different car, the 2020 Buick Regal and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
| Circuit |
Short to Ground |
Open/High Resistance |
Short to Voltage |
Signal Performance |
| 5 V Reference |
P018C |
P018C |
P018D* |
P018B |
| Signal |
P018C |
P018C |
P018D* |
P018B |
| Low Reference |
- |
P018D |
* |
P018B |
| *Internal control module or component damage may occur if the circuit shorts to B+. |